CVE-2026-56261
SSRF in Crawl4AI allows internal and cloud metadata access via webhook URLs.
Is CVE-2026-56261 being exploited?
Not confirmed. CVE-2026-56261 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.51% probability of exploitation in the next 30 days.
How severe is CVE-2026-56261?
CVE-2026-56261 is rated Critical with a CVSS score of 9.2. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-56261?
Yes. A fix has been recorded for CVE-2026-56261. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-56261 affect?
CVE-2026-56261 affects Crawl4AI < 0.8.7, Self-hosted Crawl4AI Docker deployments, Endpoints: /crawl/job, /llm/job. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-56261?
Upgrade to Crawl4AI 0.8.7+, block outbound access to metadata/internal IPs, validate webhook URLs
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker-controlled webhook URLs trigger server requests to internal IPs, Docker networks, and cloud metadata (169.254.169.254), risking credential/token exposure and internal service access.
Immediate action required
- affected< 0.8.7
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.